#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
using namespace std;
const int N = 1010;
int f[N][N];
void insert(int x1, int y1, int x2, int y2)
{
    f[x1][y1]++;
    f[x1][y2 + 1]--;
    f[x2 + 1][y1]--;
    f[x2 + 1][y2 + 1]++;
}
int main()
{
    int n, m, x1, y1, x2, y2;
    cin >> n >> m;
    while (m--)
    {
        cin >> x1 >> y1 >> x2 >> y2;
        insert(x1, y1, x2, y2);
    }
    for (int i = 1; i <= n; i++)
    {
        for (int j = 1; j <= n; j++)
        {
            f[i][j] = f[i - 1][j] + f[i][j - 1] - f[i - 1][j - 1] + f[i][j];
            cout << f[i][j] << ' ';
        }
        cout << endl;
    }

    return 0;
}